Air purifier



FIG. 1 is a front perspective view of one embodiment of the air purifier;

FIG. 2 is a front view of the air purifier of FIG. 1;

FIG. 3 is a back view of the air purifier of FIG. 1;

FIG. 4 is a left side view of the air purifier of FIG. 1;

FIG. 5 is a right side view of the air purifier of FIG. 1;

FIG. 6 is a top view of the air purifier of FIG. 1;

FIG. 7 is a bottom view of the air purifier of FIG. 1;

FIG. 8 is a front perspective view of a second embodiment of the air purifier;

FIG. 9 is a front view of the air purifier of FIG. 8;

FIG. 10 is a back view of the air purifier of FIG. 8;

FIG. 11 is a left side view of the air purifier of FIG. 8;

FIG. 12 is a right side view of the air purifier of FIG. 8;

FIG. 13 is a top view of the air purifier of FIG. 8; and,

FIG. 14 is a bottom view of the air purifier of FIG. 8.

The broken lines illustrate certain features that are shown for illustrative purposes only and do not constitute any part of the claimed design. 

CLAIM The ornamental design for an air purifier, as shown and described. 